Question

Factorise:
${x}^{3} - 3x {}^{2} - 9x - 5$
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Answer 1

Answer:

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Step-by-step explanation:rtmrem6kreyrtmy

Answer 2

Answer:

X³ – 3x² – 9x – 5

= x³ + x² – 4x² – 4x – 5x – 5

= x²( x + 1) – 4x ( x + 1) – 5(x + 1)

= (x + 1)(x² – 4x – 5)

= (x + 1)(x² – 5x + x – 5)

= (x + 1)(x – 5) (x + 1)

Hence, (x +1), (x -5) and (x +1) are the factors of given polynomial